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(11)

EP 3 449 095 A1

(12)

(43) Date of publication: 06.03.2019 Bulletin 2019/10 (21) Application number: 17724910.9 (22) Date of filing: 24.04.2017

(51) International Patent Classification (IPC):  E21B 43/12(2006.01) F04B 47/00(2006.01) F04B 9/115(2006.01) F04B 47/04(2006.01) (86) International application number: PCT/IB2017/052341 (87) International publication number: WO 2017/187315 (02.11.2017 Gazette 2017/44)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 28.04.2016 US 201662328811 P (71) Applicant: Hansen Downhole Pump Solutions A.S. 4344 Bryne (NO)	(72) Inventors: HANSEN, Henning 03150 Dolores (ES) GUDMESTAD, Tarald 4365 Nærbø (NO) LINDSAY, James Glasgow G12 0TD (GB) (74) Representative: Harrison IP Limited  3 Ebor House Millfield Lane Nether Poppleton, York YO26 6QY Nether Poppleton, York YO26 6QY (GB)